docs: def get_rate(self, code):
          """
          Helper function to access the rates structure
          Returns a dict containing name, price, symbol (the code), timestamp, type, utctime & volume
          """
          rateslist = self.rates['list']['resources']
          for rate in rateslist:
              rateobj = rate['resource']['fields']
              if rateobj['symbol'].startswith(code):
                  return rateobj
          raise RuntimeError("%s: %s not found" % (self.name, code))